N250
N315
N400
Normal Load*
NO
NO
NO
Typical Shaft output at 550 V [kW]
200
250
315
Typical Shaft output at 575 V [hp]
300
350
400
Typical Shaft output at 690 V [kW]
250
315
400
Enclosure IP21
D2h
D2h
D2h
Enclosure IP54
D2h
D2h
D2h
Enclosure IP20
D4h
D4h
D4h
Output current
Continuous (at 550 V) [A]
303
360
418
Intermittent (60 s overload) (at 550 V) [A]
333
396
460
Continuous (at 575/690 V) [A]
290
344
400
Intermittent (60 s overload) (at 575/690 V) [kVA]
319
378
440
Continuous kVA (at 550 V) [kVA]
289
343
398
Continuous kVA (at 575 V) [kVA]
289
343
398
Continuous kVA (at 690 V) [kVA]
347
411
478
Max. input current
Continuous (at 550 V) [A]
299
355
408
Continuous (at 575 V) [A]
286
339
390
Continuous (at 690 V) [A]
296
352
400
Max. cable size: line power, motor, brake and load
share, mm (AWG)
2x185 (2x350 mcm)
Max. external electrical fuses [A]
400
500
550
Estimated power loss at 575 V [W]
3719
4460
5023
Estimated power loss at 690 V [W]
3848
4610
5150
Weight, enclosure IP21, IP54 lbs [kg]
275 [125]
Weight, enclosure IP20 lbs [kg]
275 [125]
Efficiency
0.98
Output frequency
0–590 Hz
Heatsink overtemp. trip
230°F [110°C]
Power card ambient trip
167°F [75°C]
*Normal overload=110% current for 60 s
Table 10.3 Line Power Supply 3 x 525–690 V AC
The typical power loss is at nominal load conditions and expected to be within
±
15% (tolerance relates to variety
in voltage and cable conditions).
The losses are based on the default switching frequency. The losses increase significantly at higher switching
frequencies.
The options cabinet adds weight to the adjustable frequency drive. The maximum weight of the D5h–D8h frames
is shown in
.
Frame size
Description
Maximum weight, lbs [kg]
D5h
D1h disconnect and/or brake chopper 255 [116]
D6h
D1h contactor and/or circuit breaker
285 [129]
D7h
D2h disconnect and/or brake chopper 440 [200]
D8h
D2h contactor and/or circuit breaker
496 [225]
Table 10.4 D5h–D8h Weights
Specifications
VLT
®
Refrigeration Drive Instruction Manual
MG16J122 - VLT
®
is a registered Danfoss trademark
10-3
10
10